Title | Cation-Complexation Behavior of Template-Assembled Synthetic G-Quartets |
Publication Type | Journal Article |
Year of Publication | 2009 |
Authors | Nikan, M, Sherman, JC |
Journal | Journal of Organic Chemistry |
Volume | 74 |
Pagination | 5211-5218 |
Date Published | Aug |
Type of Article | Article |
ISBN Number | 0022-3263 |
Keywords | ALKALI-METAL CATIONS, CROWN-ETHERS, DEOXYGUANOSINE, DIFFRACTION, DIFFUSION NMR-SPECTROSCOPY, DNA, GUANOSINE, ION-BINDING, LIPOPHILIC G-QUADRUPLEX, RAY FIBER, SODIUM |
Abstract | We report the preparation and solution study of a set of template-assembled synthetic G-quartets (TASQs) bound to different cations. These G-quartet baskets effectively extract cations of different sizes and valencies, They form isolated G-quartets with small cations such as Na+ and Sr2+, and dimeric assemblies with larger cations such as Cs+. Their structures were determined by using H-1 NMR spectroscopy, and their sizes were evaluated by using a series of pulsed-field gradient NMR experiments. The effect of anion has been studied, and the cation selectivities have been investigated by a series of competition experiments. |
URL | <Go to ISI>://000268480300011 |
